Unfortunately, after the first month, the rubber surface of the tip Radiergummiartig is what leads the writing on the iPad stops working. The sliding feeling is completely gone.
Purify has unfortunately nothing brought, the layer which is sprayed to the rubber is not available when it was attacked again and finally away from because the pin is only to click on objects suitable.
But in order not to frighten all the people:
The pen was with me much in use and I'm not really handled it with care. Say "just" throw pen in your pocket or in your backpack. Who probably neatly maintains the pen and maybe even wearing a protective cover will probably have no problems.
